Re: [boost] Re: GUI library - another one

From: Matthias Schabel (boost_at_[hidden])
Date: 2004-03-04 15:02:13

> window w("Test Window");
> grid g(2, 2);
> w.contain(g);
> g.contain(button("Click me", on_click), 1, 1);
> g.contain(label("Enter your name:"), 0, 0);
> textentry t();
> g.contain(t, 1, 0);
> wait_for_signal(w.delete_signal()); // note () after delete_signal

I like this syntax a lot.  It's basically transparent to me as a  
non-GUI person, and I can easily envision how one would extend it.   
Three comments :

1) if a widget was capable of responding to multiple events, presumably  
you'd do something like this, right?

g.contain(widget("do something",on_click | on_mouseover |  
on_mousemove),1,1);

2) textentry t; g.contain(t,1,0); is essentially equivalent to  
g.contain(textentry(),1,0);?

3) rather than having two arguments for grid position, how about a  
position class with x() and y() members or something like that?  I  
think that would make the code more nearly model the abstraction...

Your design also seems to offer a natural way to recursively nest  
stuff, too, which is nice :

grid g2(1,3);
g.contain(g2,pos(0,1));

Another possibility which would be interesting is a layer which allows  
the GUI to be scripted...no idea how easy or hard it would be to  
implement, though...

------------------------------------------------------------------------ 
---------------------------
Matthias Schabel, Ph.D.                           	
Utah Center for Advanced Imaging Research
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mschabel at ucair med utah edu